Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 411
ion, although the cost of the second 1,000 ft.will be ;i^3,ooo more ; and the committee are relying upon the pubHc forcontributions to enable them to carry on their enterprise. It is most pro-bable that funds will be forthcoming, and should the boring result in thefinding of coal measures beneath… … Fig. \Z\.— The Diamond Drill Machinery for deep Bores. wealth has been met with by the old bore showing the existence of con-siderable beds of gypsum in these strata, and the deposits of gypsum areabout to be worked. Whether coal be found or not found, there is no doubtthat a bore-hole going down…
Inventions
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